1. Department of Immunology & Microbiology, University of Colorado School of Medicine, Aurora, Colorado, USA
2. Department of Neurology, University of Colorado School of Medicine, Aurora, Colorado, USA
3. Department of Medicinal Chemistry, Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, Piscataway, New Jersey, USA
4. Division of Infectious Disease, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
5. Neurology Service, Rocky Mountain VA Medical Center, Aurora, Colorado, USA